JE Pistons Ultra Series GM Gen III/IV LS 4.065in Bore/4in Stroke Set of 8 Pistons ZERO_PRICE 9mm Dish Chrome Inconel Exhaust

9mm Dish Chrome Inconel Exhaust Valve - Single (Drop Ship Only)

but are supplied WITHOUT a flywheel

Constructed from mandrel bent 304 stainless-steel

The delrin shell

By adding Borla(r) X-Pipe with Mid-Pipes part number 60607 (WITHOUT AFM Valves)

JE Pistons Ultra Series GM Gen III/IV LS 4.065in Bore/4in Stroke Set of 8 Pistons ZERO_PRICE 9mm Dish Chrome Inconel ExhaustManufacturer Part # : 360771 Market Description Ultra Series forged pistons from JE are the industry? s strongest, most fully featured pistons available off the shelf. Offered for a wide range of domestic applications from LS to Big Block and HEMI to Ford Modular, Ultra Series pistons feature JE? s proprietary Aligned Grain Flow forging technology providing next level tensile strength ideal for the extreme cylinder pressures of power adder engine